I do not know if this is normal, but when our son the kamiks are tight only up to the rubber, that are in the puddles deeper than 5-8 cm feet are wet. Unfortunately, the puddles that our son may prefer, and as it takes a while until the water has not fought in the liner, he does not understand the relationship between wet feet and deep puddles. On the positive side, however, that the feet also remain wet cuddly warm and have kept the shoes in the winter with snow and ice also super warm. In addition, they can be very well dressed and undressed. Probably we buy next fall for lack of better alternatives yet again kamiks.
